As for -1 for missed kicks, I'd be totally okay with doing away with that. But we've got negative points for INT's and Fumbles, I always considered that the equivalent for kickers. But I hate it when it happens to me, so if everyone wanted to get rid of it, I'd be alright with that.
I see where you're coming from, but its kind of an extra penalty as well. We don't penalize RBs when they don't get any yardage on a carry or QB's for incomplete passes. A missed FG is similar to these events in my opinion. What say the rest of you?